of various hand-written notes on 12" main Glan Conwy corner, new 18" main Dolgarrog woods, chambers on 18" main and connection, Anchor blocks No.of pipes required.
Cowlyd water supply report upon proposed duplication of trunk main Cowlyd Valley and other works-1966.
Plan referred to shewing Black Cat station LL.U.D.C. Electric Booster Station and Maenan Abbey Hall area.
Pencil drawings - notes on back.